netdev - [PATCH net-next-2.6] bnx2: 64 bit stats on all arches

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Date:	Thu, 08 Jul 2010 12:05:42 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev <netdev@...r.kernel.org>,
	Matt Carlson <mcarlson@...adcom.com>,
	Michael Chan <mchan@...adcom.com>
Subject: [PATCH net-next-2.6] bnx2: 64 bit stats on all arches

Now core network is able to handle 64 bit netdevice stats on 32 bit
arches, we can provide them for bnx2, since hardware maintains some 64
bit counters.

Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
---
 drivers/net/bnx2.c |   22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 22fa1e9..2975bf9 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -6589,36 +6589,28 @@ bnx2_save_stats(struct bnx2 *bp)
 		temp_stats[i] += hw_stats[i];
 }
 
-#define GET_64BIT_NET_STATS64(ctr)				\
-	(unsigned long) ((unsigned long) (ctr##_hi) << 32) +	\
-	(unsigned long) (ctr##_lo)
+#define GET_64BIT_NET_STATS64(ctr)		\
+	(((u64) (ctr##_hi) << 32) + (u64) (ctr##_lo))
 
 #define GET_64BIT_NET_STATS32(ctr)				\
 	(ctr##_lo)
 
-#if (BITS_PER_LONG == 64)
 #define GET_64BIT_NET_STATS(ctr)				\
 	GET_64BIT_NET_STATS64(bp->stats_blk->ctr) +		\
 	GET_64BIT_NET_STATS64(bp->temp_stats_blk->ctr)
-#else
-#define GET_64BIT_NET_STATS(ctr)				\
-	GET_64BIT_NET_STATS32(bp->stats_blk->ctr) +		\
-	GET_64BIT_NET_STATS32(bp->temp_stats_blk->ctr)
-#endif
 
 #define GET_32BIT_NET_STATS(ctr)				\
 	(unsigned long) (bp->stats_blk->ctr +			\
 			 bp->temp_stats_blk->ctr)
 
-static struct net_device_stats *
-bnx2_get_stats(struct net_device *dev)
+static struct rtnl_link_stats64 *
+bnx2_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats)
 {
 	struct bnx2 *bp = netdev_priv(dev);
-	struct net_device_stats *net_stats = &dev->stats;
 
-	if (bp->stats_blk == NULL) {
+	if (bp->stats_blk == NULL)
 		return net_stats;
-	}
+
 	net_stats->rx_packets =
 		GET_64BIT_NET_STATS(stat_IfHCInUcastPkts) +
 		GET_64BIT_NET_STATS(stat_IfHCInMulticastPkts) +
@@ -8289,7 +8281,7 @@ static const struct net_device_ops bnx2_netdev_ops = {
 	.ndo_open		= bnx2_open,
 	.ndo_start_xmit		= bnx2_start_xmit,
 	.ndo_stop		= bnx2_close,
-	.ndo_get_stats		= bnx2_get_stats,
+	.ndo_get_stats64	= bnx2_get_stats64,
 	.ndo_set_rx_mode	= bnx2_set_rx_mode,
 	.ndo_do_ioctl		= bnx2_ioctl,
 	.ndo_validate_addr	= eth_validate_addr,


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